how to build and run the gridsql source code

I just read the readme.txt . In the text it just say that " The simplest way to do this is to copy apps/gridsql/src/config/server/gridsql.config to another directory like the root project directory, modify the properties of the file appropriately depending on your environment, and set the project properties in your IDE to use the directory where this file is as the execution directory. " what does this mean "depending on your environment " ? Is there anyone give me some examples .I am a novice about gridsql and there is so little document about this